var a_idx = 0; 
jQuery(document).ready(function ($) { 
	$("body").click(function (e) { 
	var a = new Array 
		("嵌入式", "单片机", "STM32", "ARM", "C语言", "Linux", "物联网", "操作系统", "MCU", "内核", "Python", "网络"); 
	var $i = $("<span/>").text(a[a_idx]); 
	a_idx = (a_idx + 1) % a.length; 
	var x = e.pageX, 
		y = e.pageY; 
	$i.css({ 
	"z-index": 5, 
	"top": y - 20, 
	"left": x, 
	"position": "absolute", 
	"font-weight": "bold", 
	"color": "#FF0000" }); 
	$("body").append($i); 
	$i.animate({ 
	"top": y - 180, 
	"opacity": 0 }, 
		3000, function () { 
		$i.remove(); 
		}); 
	}); 
	setTimeout('delay()', 2000); }); 
function delay() 
{ 
	$(".buryit").removeAttr("onclick"); 
}
